Hitachi H8/329 Series Hardware Manual page 92

Table 5-7 indicates the states of the input pull-up transistors in each operating mode.
Table 5-7. States of Input Pull-Up Transistors (Port 2)
Mode Reset
1 Off
2 Off
3 Off
Notes: Off: The input pull-up transistor is always off.
On/off: The input pull-up transistor is on if P2PCR = "1" and P2DDR = "0," but off
otherwise.
Figure 5-2 shows a schematic diagram of port 2.
P2
n
Hardware standby
Off
Off
Off
Hardware
standby
Mode 3
Mode 1 or 2
Figure 5-2. Port 2 Schematic Diagram
Software standby
Off
On/off
On/off
Q
P2
WP2P
RP2P
Mode 1
S
Q
P2n DDR
WP2D
Q
P2
RP2
WP2P: Write Port 2 PCR
WP2D: Write Port 2 DDR
WP2: Write Port 2
RP2P : Read Port 2 PCR
RP2: Read Port 2
n = 0 to 7
Note: Set-priority
*
83
Other operating modes
Off
On/off
On/off
Reset
R
D
PCR
n
C
Reset
R
D
*
C
Reset
R
D
DR
n
C
WP2